Google Plus allows you to create badges for personal profiles and pages. With an extra click or two, you can easily create badges for Google Plus communities too.
Here is how to do it:
- Go to https://developers.google.com/+/web/badge/ and wait for the page to load completely. (It loads a generic page first, and takes a second or two to show your profile and pages.)
- From the Google+ user dropdown, select Other.
- Copy and paste the URL to the Google Plus community that you want to create the badge for.
- Customize and get the code